AC Welder

An AC welder uses the AC polarity while it is working. The AC welder uses the AC electricity that switches the direction back and forth so that the voltage may periodically reverse. The AC welder does deliver perfect weld for it allows better penetration and also will have many applications in the field. When using the AC polarity, the arc tends to go out and then it will re-establish itself.

The AC welder will, therefore, use electrodes that have specific elements in their coating which ensures that the arc is kept at ignition. The AC welder will use a welding power supply that creates an electric arc between the metal stick and the base material to melt the metals at the point where they fuse.

Notably, the AC welders will use both the consumable and non- consumable electrodes for welding! The AC welders do is often uses as a second option since the DC welders are considered to be the best and most convenient all the time! An ac welder will need a transformer that will only alter the high voltage to a low voltage while the DC may need an inverter that will convert the AC to a DC!

AC welder is just another perfect option that you can consider for welding!

 

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Best AC Welder Deals

Sunstac 250A AC/DC Aluminum TIG Welder with Pulse, 110V/220V Dual Voltage TIG Welding Machine with DC TIG/AC TIG/Pulse TIG/SPOT TIG/Stick

Image of Sunstac 250A AC/DC Aluminum TIG Welder with Pulse, 110V/220V Dual Voltage TIG Welding Machine with DC TIG/AC TIG/Pulse TIG/SPOT TIG/Stick

Key Features

  • ✅ 【Born for Aluminum Welding】AC TIG mode is perfect for dealing with Aluminum and Aluminium alloy.
  • ✅ 【AC/DC Professional TIG Welder】SS-250P/ACDC TIG welder is capable of multiple functions: High-Frequency AC, High-Frequency DC, Pulsed AC, Pulsed DC, AC SPOT, DC SPOT and STICK. Up to 250A and dual Voltage 110/220V, meeting various of welding needs and conditions.
  • ✅ 【LCD Digital Screen】Sunstac AC/DC TIG welder offers all-new LCD screen (surpass old LED screen), much easier to access parameters including voltage, current and other settings. The digits are clearly visible on the screen even with your helmet on that enables you great efficiency and accuracy.
  • ✅ 【Smart TIG Welding Machine】Equipped to minimize material distortion from excessive heat input. Spot TIG welding is suitable for welds reinforcement; Pulse TIG allows for precise control, resulting in cleaner and more precise weldings. Built-in intelligent parameter saving function, allows you effortlessly restore your previous welding settings, namely, you can pick up right where you left off.
  • ✅ 【Aluminum TIG Welder】Capable of welding most metals including Aluminum, Alloy Steel, Copper, Stainless Steel, Carbon Steel and Iron, as well as precision welding of thinner materials. For Aluminum, the max welding thickness is 5/32"(4mm) @ 110V and 6/25"(6mm) @ 220V.

Product Details

Brand:Sunstac
Model:SS-250P/ACDC

ARCCAPTAIN TIG Welder AC/DC 200Amp with Pulse, Aluminum TIG Welder 110V/220V TIG Welder with Square/Triangular Wave/Stick/MMA/Spot 7 in 1 MultiProcess Welding Machine

Image of ARCCAPTAIN TIG Welder AC/DC 200Amp with Pulse, Aluminum TIG Welder 110V/220V TIG Welder with Square/Triangular Wave/Stick/MMA/Spot 7 in 1 MultiProcess Welding Machine

$649.98 @ Amazon.com (Save 28%)

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Key Features

  • ✅ POWERFUL 7-IN-1 TIG WELDER AC/DC: The Welder is capable of welding with DC TIG / DC Pulse TIG / AC TIG / AC Pulse TIG / AC Pulse TIG Square / AC Pulse TIG Triangular / STICK /SPOT TIG Methods. AC TIG is used in finesse welding various aluminum alloys, magnesium alloys, and other non-ferrous metals. DC TIG provides low-temperature control. You need precise welding for various types of steel: stainless steel, carbon steel, copper.
  • ✅ LARGE LED DISPLAY AlUMINUM TIG WELDER : ARCCAPTAIN Tig welder can weld 0.5MM-5MM (1/5“-1.97”) aluminum and 0.5MM-10MM (1/5“-3.94”) metals. Enjoy enhanced visibility with the TIG200PACDC large LED screen, providing clear display of welding parameters, settings, this screen ensures effortless operation, providing precise control over your welds in any environment.
  • ✅ PULSE & SQUARE & TRIANGULAR WAVEFORM: The ac/dc TIG welder is equipped to prevent the burning of materials and minimize material distortion from excessive heat input, as well as the triangular wave reduces the heat input effectively, so the weld forms rapidly. It is easy for thin metal welding; Square Wave can switch the polarity quickly, dynamic arc for a stable weld pool, a strong ability to clean aluminum oxide film, so it provides more precise welding on aluminum or aluminum alloy.
  • ✅ DIGITAL WEDLING PARAMETER SET: MCU Digital control system makes this machine more reliable and stable. Parameters such as Pre-flow, Initial current,Up-slope, Peak current, Base current, Down-slope,Crater current, Post-flow, Pulse duty, AC frequency, AC balance, Pulse frequency,are easily adjustable,and 2T/4T/Spot welding TIG torch control and foot pedal remote control (not included) methods which improve good welding performance.
  • ✅ 5 YEARS QUALITY SERVICE : We have professional personnel who can provide you with answer. The user-friendly and simple interface enables the operators to set it up easily and efficiently, data and dynamic output current will be displayed immediately. Spike withstanding IGBT saves space and weight. It's only 12 kg(26.5lb) . No heavy carrying! Note: DON'T power on until the screen turns off and the fan stops working!

Product Details

Brand:ARCCAPTAIN
Model:ARCCAPTAIN TIG200PACDC
Size:TIG200P ACDC
Color:Red
Dimensions:N/A X N/A X N/A in

YESWELDER 200A AC/DC Aluminum Tig Welder with Pulse Large LED Display, Digital Inverter STICK/TIG 110/220V Dual Voltage TIG Welding Machine TIG-200P ACDC

Image of YESWELDER 200A AC/DC Aluminum Tig Welder with Pulse Large LED Display, Digital Inverter STICK/TIG 110/220V Dual Voltage TIG Welding Machine TIG-200P ACDC

$519.99 @ Amazon.com (Save 20%)

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Key Features

  • ✅ Large LED display can help you see the data more clearly, such as the current, function mode and welding mode.
  • ✅ Easy Start & Auto Memory: Features Hot Start for easy, stable ignition with minimal spatter and no sticking, plus Auto Memory to save/recover settings after power-off. Includes High-Frequency (HF) non-touch starting for reliable ignition and stable performance.
  • ✅ MORE POWERFUL: Up to 200A, very suitable for welding most types of thicknesses regarding work-pieces, and ensure long-time welding.
  • ✅ 6 IN 1 TIG WELDER: In possesion of STICK, AC TIG, DC TIG, AC Pulse TIG, DC Pulse TIG, Spot Welding in one machine, meets your versatile welding needs.
  • ✅ ALUMINUM APPLICABLE: Squarewave is the best option to improve your weld quality and make aluminum welding easier. Suitable for aluminum up to 4/25".

Product Details

Brand:YESWELDER
Model:TIG-200P ACDC

PRIMEWELD TIG225X 225 Amp IGBT AC DC Tig/Stick Welder with Pulse CK17 Flex Torch and Cable

Image of PRIMEWELD TIG225X 225 Amp IGBT AC DC Tig/Stick Welder with Pulse CK17 Flex Torch and Cable

Key Features

  • ✅ 225AMPS TIG/STICK WELDER WITH PULSE FUNCTION WORKS GREAT WITH ALUMINUM, STAINLESS STEEL AND THINNER METALS
  • ✅ CK Worldwide 17 Series Superflex TIG Torch with Flex Head AND CK SUPERFLEX HOSE, ALSO INCLUDES CK DINSE CONNECTOR USA MADE
  • ✅ 200HRTZ on PULSE FREQ AND AC FREQ will do 1/4" aluminum and 3/8" mild steel and 110/220 volts and is capable of welding 7018, 6013
  • ✅ Both HF start hand torch control and precise foot pedal welding heat control
  • ✅ Advanced Inverter Technology with PWM (Pulse Width Modulation) Using IGBT technology

Product Details

Brand:PRIMEWELD
Color:Black
Dimensions:24 X 19 X 12 Inches

HITBOX TIG Welder AC/DC with Pulse, 200A Professional Aluminum Welding Machine with Square Wave/Stick/MMA/IGBT, 220V Exquisite All-Round Arc Welder, Offering You Excellent Cost Performance (HBT250P)

Image of HITBOX TIG Welder AC/DC with Pulse, 200A Professional Aluminum Welding Machine with Square Wave/Stick/MMA/IGBT, 220V Exquisite All-Round Arc Welder, Offering You Excellent Cost Performance (HBT250P)

Key Features

  • ✅ 【FEATURES/BENIFITS】HBT250P TIG welder is an inverter based arc welding power source optimized for AC/DC TIG welding and Stick welding. A true professional's choice with advanced waveforms, 2T/4T Mode and pulse controls, this machine will deliver the arc You need. All of the features You want can be easily customized to Your application and saved in the available memory settings. TIG weld like a champion with the new HBT250P AC/DC machine.
  • ✅ 【SIMPLICITY WITHOUT COMPROMISE】TIG HBT250P is a portable TIG and stick welding machine that lets hobbyists, makers, small fabricators and craftsmen explore their creativity. It is designed to help expand your welding expertise. As your skills and confidence grow, you can take advantage of the Square Wave TIG additional functionality. No matter your skill level, you won’t be disappointed.
  • ✅ 【ALL-ROUND CUSTOMIZATION】The Square Wave TIG provides smooth and stable AC TIG welding on aluminum and DC TIG welding on steel, stainless steel and chrome-moly. A user-friendly interface enables the operators to set it, Up to 12+ functions can be configured, each designed to improve welding results and reduce tungsten loss. Users also can easily adjust AC Frequency Control. AC Balance can be adjusted to provide more cleaning action on dirty aluminum or to maximize penetration on thick materials.
  • ✅ 【ADVANCED FEATURES】Multiple functions can be set: 2T/4T, newbie friendly. Other features, such as Pulse, which provides a drumbeat-like rhythm for filler metal deposition, make you become a Better TIG Welder - faster - Appearance of welds are better when using TIG welders.
  • ✅ 【BETTER SAFETY SYSTEMS】Our TIG welders are based on VRD, overvoltage, overcurrent, overload, and overheat protections to ensure the safety of our customers. The unique dual fan movement cooling system cools the machine quickly, extending the welding time and ensuring a stable TIG weld and a stunning weld performance.

Product Details

Brand:HITBOX
Model:HBT250P
Size:HBT250P

Weldpro TIG Welder AC/DC 200A with Pulse, Aluminum TIG Welder 110V/220V with TIG Torch ACDC TIG/PULSE TIG/SPOT TIG/Stick 6 in 1 Multi-Process Welding Machine with Foot Pedal

Image of Weldpro TIG Welder AC/DC 200A with Pulse, Aluminum TIG Welder 110V/220V with TIG Torch ACDC TIG/PULSE TIG/SPOT TIG/Stick 6 in 1 Multi-Process Welding Machine with Foot Pedal

Key Features

  • ✅ VERSATILE 6-IN-1 TIG WELDER: Experience unmatched versatility with our multifunctional TIG welder, capable of High-Frequency AC, High-Frequency DC, Pulsed AC, Pulsed DC, SPOT TIG, and STICK welding methods. Perfect for finesse welding on aluminum and magnesium alloys, as well as other non-ferrous metals. With dual voltage (110/220V) and a powerful output of up to 200A, it meets all your diverse welding requirements with ease
  • ✅ ENHANCED POWER AND SAFETY: Enjoy optimal performance with robust 200A capability, designed for welding various material thicknesses. Our AC/DC TIG welder features advanced safety mechanisms to prevent material burn-through and minimize distortion, ensuring you achieve clean, rapid welds even on delicate materials
  • ✅ LARGE LED DISPLAY FOR PRECISION: Our aluminum TIG welder boasts a large LED screen that clearly displays welding parameters and settings. Enjoy enhanced visibility and effortless operation, allowing you to maintain precise control over your welds in any environment, whether you’re a beginner or a seasoned professional
  • ✅ ADVANCED DIGITAL WELDING CONTROLS: The state-of-the-art digital control system provides exceptional stability and reliability. With features like adjustable start and end amps, upslope, downslope, fully customizable pulse, AC balance, and frequency settings, you can achieve cleaner, more precise welds. Spot TIG welding reinforces joints effectively, while Pulse TIG allows for meticulous control
  • ✅ WIDE METAL COMPATIBILITY: This welder is not just limited to aluminum; it skillfully handles a range of materials including alloy steel, copper, stainless steel, carbon steel, and iron. It’s ideal for precision welding of thin materials, making it a versatile addition to any workshop

Product Details

Brand:W Weldpro
Model:opikll-530
Dimensions:0 X 0 X 0 Inches

TOOLIOM 200A AC/DC TIG Welder with Pulse, Dual Voltage 110V/220V, Aluminum Welder with IGBT Inverter, Large LED Display, AC TIG/DC TIG/Pulse TIG/SPOT TIG/Stick Multiprocess Welding Machine

Image of TOOLIOM 200A AC/DC TIG Welder with Pulse, Dual Voltage 110V/220V, Aluminum Welder with IGBT Inverter, Large LED Display, AC TIG/DC TIG/Pulse TIG/SPOT TIG/Stick Multiprocess Welding Machine

$409.99 @ Amazon.com (Save 24%)

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Key Features

  • ✅ 6-in-1 Welding Modes: The TOOLIOM TL-200TP ACDC PRO welder features six versatile welding modes: AC TIG, DC TIG, AC Pulsed TIG, DC Pulsed TIG, Stick, and TIG Spot Welding, making it suitable for a wide range of welding applications and conditions.
  • ✅ Foot Pedal Function: Compatible with a foot pedal (not included), this feature enables operators to start/stop the arc and adjust the welding current remotely, providing precise control to tailor the welding experience to your exact needs.
  • ✅ Large Digital Display Screen: The larger screen prominently displays key parameters such as mode, voltage, and current, providing a clear view of real-time data changes to monitor equipment status and make timely adjustments for improved operational efficiency.
  • ✅ Aluminum TIG Welder:Capable of welding most metals including Aluminum, Alloy Steel, Copper, Stainless Steel, Carbon Steel and Iron, as well as precision welding of thinner materials. For aluminum, the max welding thickness is 1/8"(3mm) @ 110V and 3/16"(5mm) @ 220V.
  • ✅ ACDC PULSED TIG WELDER: Software Controlled Square Wave AC/DC TIG inverter welder, it produces high performance with an array of pulse features, and its unique fish-scale waveform ensures excellent weld quality while enhancing the visual appeal of the welds.

Product Details

Brand:TOOLIOM
Model:TL-200TP ACDC Pro
Size:200A Aluminum ACDC TIG Welder

SSimder AC/DC TIG Welder 250AMP With Pulse Aluminum TIG Welder AC TIG/DC TIG/Pulse TIG/SPOT TIG/Stick Dual Voltage TIG Welding Machine

Image of SSimder AC/DC TIG Welder 250AMP With Pulse Aluminum TIG Welder AC TIG/DC TIG/Pulse TIG/SPOT TIG/Stick Dual Voltage TIG Welding Machine

Key Features

  • ✅ Powerful 6-in-1 AC/DC TIG Welder : This TIG Welder is capable of welding with AC TIG /AC Pulse TIG /DC TIG /DC Pulse TIG /STICK /SPOT TIG Methods.It is perfect producing superior welds on materials like aluminum, stainless steel, carbon steel, iron, and more.
  • ✅ AC/DC TIG Welder: This AC TIG welder offers versatile welding modes, including Manual AC/DC TIG, AC/DC Pulse TIG, and Synergic AC/DC TIG and Pulse TIG. Whether you're working with aluminum, stainless steel, or other metals, it delivers precise arc control, stable performance, and smooth welds. The manual modes allow fine-tuned adjustment for experienced welders, while the SYN modes simplify setup with intelligent parameter synergy — ideal for both beginners and professionals. Pulse functionality enhances heat control, making it perfect for thin materials and minimizing deformation.
  • ✅ Smart Synergic TIG welder: Synergy mode is suitable for beginners. By adjusting the current, all parameters such as up/down slope-time, AC HZ, AC balance and so on can be automatically set.
  • ✅ Multiprocess welder: This multiprocess welder supports DC TIG, DC Pulse TIG, and Stick Welding modes, making it perfect for a wide range of applications. Equipped with advanced features including 2T/4T, Spot Welding, Pre Flow, Post Flow, Hot Start, Arc Force and utilize a foot pedal remote control (sold separately). It offers precise arc control and smooth weld quality.
  • ✅ Multi-Scenario TIG Welder: A must-have Aluminum TIG Welder in home garage, applicable for garden maintenance, farm fixes, auto repairs, roadside repairs or metal art—this welder thrives anywhere. Tackle trailer hitches, tractor parts, or DIY projects with 250A power. A perfect gift for father, husband, boyfriend, beginner welder or metal DIYers.

Product Details

Brand:S SIMDER
Model:TIG-250AC

AZZUNO AC/DC TIG Welder 200A with Pulse 110V/220V, Aluminum TIG Welding Machine, ACDC TIG/PULSE TIG/SPOT TIG/Stick Welder Machine

Image of AZZUNO AC/DC TIG Welder 200A with Pulse 110V/220V, Aluminum TIG Welding Machine, ACDC TIG/PULSE TIG/SPOT TIG/Stick Welder Machine

Key Features

  • ✅ 7-IN-1 MULTIFUNCTIONAL TIG WELDER: The AZZUNO AC/DC TIG Welder delivers unmatched versatility with its impressive 7-in-1 capabilities. From AC TIG, AC Pulsed TIG, and DC TIG, DC Pulsed TIG, Spot TIG, to Stick welding, and Spot Stick, this machine handles a wide range of welding tasks effortlessly. It excels at producing superior welds on materials like aluminum, stainless steel, carbon steel, iron, and more.(Dimensions: 14.5"×6.7"×9" ;N.W.: 17LBS)
  • ✅ MASTER THE PULSE: Unlock greater precision and cleaner welds with the PULSE TIG function. Ideal for aluminum welding, this feature offers enhanced control for professional-quality results. Select from 2T, 4T, or SPOT TIG modes, and utilize a foot pedal remote control (sold separately) to customize your welding experience to your exact needs.
  • ✅ PRECISION PARAMETER SETTINGS: Our TIG Welder boasts an advanced MCU Digital control system, take command of every weld with precision by effortlessly adjusting essential parameters like Pre-flow, Initial current, Slope-up, Peak current, Base current, Slope-down, Crater current, Post-flow, Pulse duty, AC frequency, AC balance, and Pulse frequency. Your welding experience has never been more finely tuned.
  • ✅ SEAMLESS PARAMETER PERSISTENCE: Our AC/DC TIG welding machine features an intelligent automatic save function, effortlessly restore your previous welding parameters, allowing you to pick up right where you left off. Say goodbye to the hassle of reconfiguring settings and experience uninterrupted welding precision.
  • ✅ PACKAGE INCLUDES: AZZUNO AC/DC TIG welder comes complete with a comprehensive set of accessories, including TIG Torch(WP-26), Electrode Holder, Ground Clamp, Brush/hammer, 110V/220V Adapter Cord, Argon Gas Regulater and Hose, Nozzle*3, Collet*3, Tungsten Electrode*3. With these accessories and its versatility, our TIG welder is the go-to choice for a wide array of welding applications.

Product Details

Brand:AZZUNO
Dimensions:14.5 X 6.7 X 9 inches

Lincoln Electric Square Wave® 205 TIG Welder K5613-1

Image of Lincoln Electric Square Wave® 205 TIG Welder K5613-1

Key Features

  • ✅ A Great TIG Machine for Aluminum - For a wider or tighter welding bead, users can easily adjust AC Frequency Control. AC Balance can be adjusted to provide more cleaning action on dirty aluminum or to maximize penetration on thick materials.
  • ✅ TIG and Stick from One Power Source - The multi-process machine can TIG weld when precision and bead appearance are important. Users also have the advantage of stick welding capability for outdoor work or thicker materials.
  • ✅ Take it Everywhere, Plug in Anywhere. - Plug in the Square Wave 205 where you need it - a standard 120V circuit or 230V for maximum output. Portable andconvenient to use, only 36lbs (16 kg)

Product Details

Brand:Lincoln Electric
Model:K5613-1
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